Casio CFX-9950GB PLUS Manual de cálculos - Página 3

Navegue en línea o descargue pdf Manual de cálculos para Calculadora Casio CFX-9950GB PLUS. Casio CFX-9950GB PLUS 15 páginas. 6. matrix calculations
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3-2 Differential Calculations

To perform differential calculations, first display the function analysis menu, and

then input the values shown in the formula below.

The differentiation for this type of calculation is defined as:

In this definition, infinitesimal is replaced by a sufficiently small A

in the neighborhood of f ' (a) calculated as:

In order to provide the best precision possible, this unit employs central difference

to perform differential calculations. The following illustrates central difference.

The slopes of point

y = f(x)

In the above, A

difference. To calculate derivatives, the unit takes the average between the value

of A

f(x)

)

d/dx ( f (x), a, Ax)

f (a + Ax) – f (a)

f '(a) = lim –––––––––– –––

Ax 0

f (a + Ax) – f (a)

f '(a)

–––––––––– –––

and point

are as follows:

f (a + Ax) – f (a)

–––––––––– ––– = ––– , –––––––––– ––– = –––

is called the forward difference, while

and

, thereby providing higher precision for derivatives.

)

Increase/decrease of

Point for which you want to determine the derivative

––– f (a)

a +

, and of point

f (a) – f (a – Ax)

[OPTN]-[CALC]-[d/dx]

, with the value

a –

and point

in function

is the backward